We've had that logic in 2 places so far, leading to duplication and a maintenance burden. In the future, we'll also have an import-postgres feature, which will also need Postgres version detection, leading to more benefit from that logic being reusable.
46 lines
2 KiB
YAML
46 lines
2 KiB
YAML
---
|
|
|
|
# This utility aims to determine if there is some existing Postgres version in use or not.
|
|
# If there is, it also tries to detect the Docker image that corresponds to that version.
|
|
|
|
- name: Initialize Postgres version determination variables (default to empty)
|
|
set_fact:
|
|
matrix_postgres_detection_pg_version_path: "{{ matrix_postgres_data_path }}/PG_VERSION"
|
|
matrix_postgres_detected_existing: false
|
|
matrix_postgres_detected_version: ""
|
|
matrix_postgres_detected_version_corresponding_docker_image: ""
|
|
|
|
- name: Determine existing Postgres version (check PG_VERSION file)
|
|
stat:
|
|
path: "{{ matrix_postgres_detection_pg_version_path }}"
|
|
register: result_pg_version_stat
|
|
|
|
- set_fact:
|
|
matrix_postgres_detected_existing: true
|
|
when: "result_pg_version_stat.stat.exists"
|
|
|
|
- name: Determine existing Postgres version (read PG_VERSION file)
|
|
slurp:
|
|
src: "{{ matrix_postgres_detection_pg_version_path }}"
|
|
register: result_pg_version
|
|
when: "matrix_postgres_detected_existing"
|
|
|
|
- name: Determine existing Postgres version (make sense of PG_VERSION file)
|
|
set_fact:
|
|
matrix_postgres_detected_version: "{{ result_pg_version['content']|b64decode|replace('\n', '') }}"
|
|
when: "matrix_postgres_detected_existing"
|
|
|
|
- name: Determine corresponding Docker image to detected version (assume default of latest)
|
|
set_fact:
|
|
matrix_postgres_detected_version_corresponding_docker_image: "{{ matrix_postgres_docker_image_latest }}"
|
|
when: "matrix_postgres_detected_version != ''"
|
|
|
|
- name: Determine corresponding Docker image to detected version (use 9.x, if detected)
|
|
set_fact:
|
|
matrix_postgres_detected_version_corresponding_docker_image: "{{ matrix_postgres_docker_image_v9 }}"
|
|
when: "matrix_postgres_detected_version.startswith('9.')"
|
|
|
|
- name: Determine corresponding Docker image to detected version (use 10.x, if detected)
|
|
set_fact:
|
|
matrix_postgres_detected_version_corresponding_docker_image: "{{ matrix_postgres_docker_image_v10 }}"
|
|
when: "matrix_postgres_detected_version == '10' or matrix_postgres_detected_version.startswith('10.')" |